Patents by Inventor Miura Tohru

Miura Tohru has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • 4-ethyl-3-(substituted phenyl)-1-(3-trifluoromethylphenyl)-2-pyrrolidinone derivatives, herbicidal compositions containing them and use thereof
    Patent number: 5131947
    Abstract: 4-Ethyl-3-(phenyl)-1-(3-trifluoromethylphenyl)-2-pyrrolidinones and corresponding compounds bearing a p-substituent on the 1-position phenyl group and/or a substituent on the 3-position phenyl group exhibit selective herbicidal activities against various weeds which cause problems in rice or upland fields, even at extremely low application rates. They can be prepared by reductive dehalogenation of a corresponding .alpha.-haloethyl substituted pyrrolidinone or reductive cyclization of a corresponding N-2-butenyl-N-(substituted phenyl)-haloacetyl-3-trifluoromethylaniline.
    Type: Grant
    Filed: March 14, 1990
    Date of Patent: July 21, 1992
    Assignee: Mitsui Toatsu Chemicals Incorporated
    Inventors: Kengo Oda, Koichi Moriyasu, Kiyoshi Arai, Kanji Tomiya, Miura Tohru, Makoto Nishida, Masami Oyamada, Akie Fujiwara